On-line Monitoring of High Temperature Pipeline Wall Thickness Based on the Shear Horizontal Ultrasonic Guided Wave
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摘要: 设计了一种基于水平剪切（SH）导波的高温管道壁厚在线监测方法，该方法通过采用波导条作为热缓冲结构，在压电换能器和高温管道之间快速隔热降温，同时传递用于测量壁厚的非频散SH导波信号。提出了一种波导条上非频散水平剪切导波激励和接收方法，设计了波导条和高温管道干耦合夹持连接装置，通过试验验证了这种SH超声导波法在高温（600℃）下在线监测管道壁厚的可行性。Abstract: In this paper, an on-line monitoring method of high temperature pipeline wall thickness based on the shear horizontal(SH) guided wave was developed. It uses a strip waveguide as thermal buffer structure to quickly insulate the piezoelectric transducer from high temperature pipelines, and at the same time, a non-dispersive SH guided wave is delivered through the waveguide for measuring wall thickness. A method of excitation and reception of non-dispersive shear horizontal guided wave in strip waveguides was proposed, and a dry coupling clamping device between waveguides and high temperature pipeline was designed. Finally, the feasibility of SH ultrasonic guided wave method for on-line monitoring of high temperature (600℃) pipeline wall thickness was verified by experiments.
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[1] 刘杰, 付裕, 高海宾, 等. 一种新型管道腐蚀监测技术及应用Permasense超声波腐蚀监测系统[J]. 全面腐蚀控制, 2016, 30(8):19-22, 82. [2] 臧延旭. 管道壁厚测量技术研究进展[J]. 管道技术与设备, 2013(3):20-22. [3] KAZYS R,VOLEISIS A,VOLEISIENE B. High temperature ultrasonic transducers:review[J]. Ultragarsas, 2008,52:525-537.
[4] ZHANG S, YU F.Piezoelectric materials for high temperature sensors[J]. Journal of the American Ceramic Society, 2011,94:3153-3170.
[5] CEGLA F B, CAWLEY P, ALLIN J. High-temperature (>500℃) wall thickness monitoring using dry-coupled ultrasonic waveguide transducers[J]. IEEE Transactions on Ultrasonics, Frroelectrics and Frequency Control, 2011, 58(1):156-167.
[6] BURROWS S E, FAN Y, DIXON S. High temperature thickness measurements of stainless steel and low carbon steel using electromagnetic acoustic transducers[J]. NDT & E International, 2014, 68:73-77.
[7] LUNN N, POTTER M, DIXON S. Shear wave EMAT thickness measurements of low carbon steel at 450℃ without cooling[C]//Review of Progress in Quantitative Nondestructive Evaluation.[S.l.]:[s.n.],2017.
[8] CEGLA F B. Energy concentration at the center of large aspect ratio rectangular waveguides at high frequencies[J]. Journal of the Acoustical Society of America, 2008, 123(6):4218.
[9] ROSE L. Ultrasonic guided waves in solid media[M]. Cambridge:Cambridge University Press, 2014.
[10] ROSE J L.固体中的超声波[M].何存富,吴斌,王秀彦,译.北京:科学出版社,2004.
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